24. The World's Biggest Machines.

Join us for a look at the biggest, heaviest, tallest, longest, meanest machines on the planet! We'll see what these monsters do and how they operate, and how they're designed and assembled. Machines investigated include the largest draglines, excavators used in mining; the biggest dump truck; a front-end loader with an 80-ton bucket and the largest tires of any vehicle; the cruise ship, the Voyager of the Seas; a 240-foot tall wind generator; and a fusion reaction machine the size of a football field.